Codes

These are RAM codes for use in emulators that support these, like FCE Ultra and NESten. These codes were all found by me, though I've been posting them at various FE forums, so they might be well-known by now.
To use these codes, open the unit window, and check which number in line the character whose stats you wish to change is. Convert this number to hex (if greater than 9), then use a hexidecimal calculator to mulyiply it by 1B. Then add the number you see in the table (still using hex).

HP	6A78
Max HP	6A79
Exp	6A7A
Power	6A7C
Skill	6A7D
Weapon Level	6A7E
Speed	6A7F
Luck	6A80
Defense	6A81
Movement	6A82
Magic Defense	6A84
Weapon 1	6A88
Weapon 2	6A89
Weapon 3	6A8A
Weapon 4	6A8B
Weapon 1 uses	6A8C
Weapon 2 uses	6A8D
Weapon 3 uses	6A8E
Weapon 4 uses	6A8F

To change the entire active team's stats (either you or the enemy), use the following values.

HP	76F7
Max HP	76F8
Exp	76F9
Power	76FB
Skill	76FC
Weapon Level	76FD
Speed	76FE
Luck	76FF
Defense	7700
Movement	7701
Magic Defense	7703
Weapon 1	7707
Weapon 2	7708
Weapon 3	7709
Weapon 4	770A
Weapon 1 uses	770B
Weapon 2 uses	770C
Weapon 3 uses	770D
Weapon 4 uses	770E